The mandate of the present Executive Board of IWRA is from January 2019 to December 2021.


Gabriel Eckstein (USA)

Gabriel Eckstein is Professor of Law at Texas A&M University and Director of the law school’s Program in Natural Resources Systems. He focuses his research and teaching on water, natural resources, and environmental law and policy issues at the local, national, and international levels. He regularly advises UN agencies, national and sub-national governments, non-governmental organizations, and other groups on international and US water and environmental issues. He also directs the consultancy International H2O Solutions, as well as the non-profit International Water Law Project. From 2010-2015, Professor Eckstein served as Treasurer of IWRA; in 2017, he chaired the XVI World Water Congress International Scientific Committee. Professor Eckstein also serves as Associate Editor for Brill Research Perspectives: International Water Law, and on the Editorial Board of the Journal of Water Law. He holds a Juris Doctor and an LL.M. in International Environmental Law, an M.S. in International Affairs, and a B.A. in Geology.

Past President

Patrick Lavarde (France)

Patrick Lavarde is currently a member of the Environment and Sustainable Development Advisory Board of the French Ministry of Environment. He is the co-Chair of the International Steering Committee of the 9th World Water Forum. He was a Governor of the World Water Council from 2012 to 2018 and President of IWRA during the term 2016-2018 after being a Director from 2013-2015. In 2007, he created the French National Office for Water and Aquatic Environments (ONEMA). Being its General Director until October 2012, he engaged in water research coordination, national monitoring of water bodies, regulation and enforcement, and technical support to stakeholders. From 1998 to 2007, he was General Director of the National Research Institute on Environmental Sciences and Technologies, the leading French institution on freshwater issues. During this mandate, he chaired the Partnership on European Environmental Research and was deeply involved in the European Network of Water Research (Euraqua). Previously he worked for public organisations involved in forestry, agriculture and water, at national and local levels.


Blanca Jiménez-Cisneros (Mexico)

Blanca Jiménez-Cisneros is an Environmental Engineering with PhD degree in Water from the Institut National des Sciences Appliquées, France. She has over 30 years of experience at the academia, public sector and as a consultant for the private sector and international organisation. Her main fields of expertise are water reuse for agriculture and human consumption and water resources management with focus on developing countries. She has been researcher at UNAM in Mexico, the University of Pretoria in South Africa and the Federal University of Curitiba, Brazil. Dr Jiménez has authored more than 460 publications and has around 6000 quotations. She was co-coordinator for the freshwater resources chapter for the AR4 of IPCC and has been engaged as reviewer in the same field for the AR5. In 2012 she joined UNESCO as Director of the Division of Water Sciences and Secretary of the International Hydrological Programme (IHP). She has received several Mexican and international awards, among which the IWA Global Water Award 2010 and the Royal Polar Star presented by the King of Sweden for her contributions on water and nutrients reclamation and the involvement of the youth on water research, respectively. She has been recently appointed as the new Director General of the National Water Commission of Mexico (Conagua).

Karin Krchnak (Slovakia)

As an environmental lawyer, Karin Krchnak has worked to improve policies and procedures related to environmental management and resource conservation worldwide for over 25 years. She has spent the last 15 years in leadership positions around improving water resource management. This has included managing initiatives focused on advancing corporate water stewardship, water security, and building better governance through increased transparency, rule of law and institutional strengthening. She currently leads the 2030 Water Resources Group, hosted by the World Bank Group. Ms. Krchnak received her B.A. in Political Science from Duke University and her J.D. from the University of Maryland School of Law. She has published extensively in international environmental policy and sustainable development, particularly on freshwater issues. She has served on numerous steering committees, including the Board of Governors of the World Water Council, its Executive Management Team and as Chair of the Governance Commission.

Yuanyuan Li (China)

Yuanyuan Li is Vice-President and Professor of the General Institute of Water Resources and Hydropower Planning and Design at the Ministry of Water Resources of China, which is the most important technical supporting agency to the national water resources development and strategy planning, water policy research, formulation and management. His fields of expertise include water resources management mechanisms, human activities-water resources interaction, water resources system analysis and planning, water ecology and environment protection etc. He has led many nationwide water resources surveys, strategy studies, comprehensive water resources planning, major water projects technological demonstration, water policies formulation and management activities as well as international programmes and cooperation. He has widely published books and papers about water related topics. His research results have been awarded numerous state science and technology awards. He is serving as a Director on the Executive Board of IWRA for the 2012-2015 period and is the Chair of the IWRA Chinese Committee.

Secretary General

Guy Fradin (France)

Guy Fradin is currently President of the Forestry, Water and Rural Areas Department in the Ministry of Agriculture. He first worked as a forester within the National Office for Forestry (1976/1980), then in the Forestry Department of the UN Food and Agriculture Organization (FAO, 1980/1982) and in the International Department of the Ministry of Agriculture (1982/1989). Subsequently, he was in charge of economic issues for the Ministry (1989/1992) and then was appointed as the Deputy Director for Rural Areas and Forestry (1992/2000). He served as Deputy Director of the Ministry of Agriculture Office (1997), Regional Director of Agriculture and Forestry in Ile-de-France (2000/2003), Director of Nature and Landscapes in the Ministry of Ecology (2003) and Director of the Office of the Ministry of Environment (2003/2004) before being appointed Director General of the Seine Normandy Water Agency (2004/2011).


Renée Martin-Nagle (USA)

Renee Martin-Nagle is President and CEO of A Ripple Effect PLC, a PhD Researcher at the University of Strathclyde, and a Visiting Scholar at the Environmental Law Institute. For more than twenty years prior to joining the water community, she was the chief legal counsel for Airbus Americas. Renee earned an LL.M from George Washington University Law School (with highest honors), a Juris Doctor from the University of Pittsburgh School of Law, a Bachelor of Arts from St. Francis University and an Associate of Arts from Mount Aloysius College. Her LL.M. thesis, “Fossil Aquifers: A Common Heritage of Mankind”, won the 2011 Jamie Grodsky Prize for Environmental Law Scholarship.

Committee Chairs

Awards Committee, Rabi Mohtar (Lebanon)

Rabi Mohtar is a Professor of Environmental Resources Engineering at Texas A&M University, where he founded the University’s Water-Energy-Food Nexus Initiative (WEFNI), and Dean of the Faculty of Agricultural and Life Sciences at the American University of Beirut (2018), where he has introduced several initiatives, including the Water-Energy-Food-Health Nexus Renewable Resources Initiative (WEFRAH), a University wide initiative focused on regional collaboration to achieve primary resources security. In both institutions, Mohtar continues his efforts to develop analytical frameworks for the quantitative assessment of resource allocation tradeoffs and with the goal of providing effective tools to empower stakeholder dialogue, particularly between policy makers, scientists, and civil society. In 2015, he gave the Ven Te Chow memorial Lecture during IWRA’s XV World Water Congress and convened a High-Level Panel during the XVI World Water Congress. He has published over 200 peer-reviewed articles, refereed conference proceedings, books and chapters addressing global resource security, linking science and policy, characterizing soil-water medium using thermodynamic modeling, non-traditional water applications for sustainable integrated water management.

Scientific, Technical & Publications Committee, Henning Bjornlund (Australia)

Henning Bjornlund has been at the University of South Australia for more than 20 years. Since January 2015, he has been a Research Professor of Water Management and Policy. For the last three years he served as a Director of IWRA. In that capacity, he presented a number of papers and served on two steering committees for research projects. He has extensive experience in managing large research projects and published some 175 refereed papers. Prior to joining academia Henning was involved in the management of educational institutions, businesses, tropical farming operations and a development aid organisation. He served in various capacities such as board member, chairman and executive director. Henning offers a unique blend of experiences crossing academia, industry and the NGO sector.

Membership Committee, Tom Soo (Australia)

Tom Soo is a senior executive and consultant in the water sector. He has been Executive Director of IWRA and the World Water Council and also has a background in consulting to international institutions, public authorities, academia, as well as private industry. Tom’s current focus areas include institutional arrangements, strengthening the link between knowledge generation and policy making; hydro-environment engineering and research; water quality; building networks between private industry, research and government stakeholders; as well as strategy and technical consulting in the sector of water and natural resources. Over the years, Tom has participated in numerous international committees and task forces. He holds a research masters degree in geography; and also has a degree in computer systems engineering (electrical). He currently heads up the International Association of Hydro-Environmental Engineering and Research; is a member of the Water Policy Group; as well as chairs the International Advisory Committee of the UNSW Global Water Institute and the Membership Committee of the IWRA.


Asma Bachikh (Morocco)

Asma Bachikh is a young water professional from Morocco. She has previously served as president of the World Youth Parliament for Water for a mandate of three years between 2015-2018. She has worked on developing youth strategies for multiple leading organisations including the Global Water Partnership where she was sitting as a special observer on its steering committee. Asma is working as a consultant for the World Bank Water Practice focusing on developing their youth engagement in projects in the MENA region. She has a Master’s of law in international relations and politics from Peking University and she is currently pursuing a Master’s of science in water science policy and management at the University of Oxford.

Guillermo Donoso (Chile)

Guillermo Donoso is Full Professor at the Water Law and Economics Center of the Pontificia Universidad Católica de Chile (PUC). Has been Director of the National Agricultural Research Institute of Chile and Dean of the Facultad de Agronomía e Ingeniería Forestal of PUC (1998-2007). His publications include books such as: Mercados (de derechos) de agua: Experiencias y Propuestas en América del Sur; book chapters: “Water Pricing Experiences in Chile”, “Water Markets in Chile: Are They Meeting Needs?”, “Regulating Groundwater Use Through Economic Instruments: Current Practices, Challenges and Innovative Approaches”, “The Evolution of Water Markets in Chile”; and publications in Water Resources Management, Water Policy, Water Science and Technology, Cuadernos de Economía, Ciencia e Investigación Agraria, and Revista de Derecho Administrativo Económico. Professor Donoso’s current research interest focus on collective water management with a focus on groundwater management, the use of economic policy instruments in water policy, and water use efficiency in the urban and agricultural sector.

Jun-Haeng Heo (Rep. of Korea)

Jun-Haeng Heo, with a Ph.D. from Colorado State University (1990), is a Professor of School of Civil & Environmental Engineering and Dean of the Institute of Disaster Resilience & Safety at Yonsei University (Seoul). He had served as ISC and Bureau member of the 7th World Water Forum and Professional member of “Presidential Committee on Unification”. He is now the President of Korea Water Resources Association (KWRA), and a senior member of the National Academy of Engineering of Korea. He is the author of more than 160 peer reviewed papers and more than 500 conference papers focused on the statistical hydrology, water resources system, and climate change. He is now the Chairperson of International Centre for Water Security and Sustainable Management under the auspices of UNESCO since 2017.

Farda Imanov (Azerbaijan)

Professor Farda Imanov is currently the Deputy Director of the Scientific Research and Design Institute of “Azersu” OJSC, a corporate member of IWRA and the National Water Company of Azerbaijan. He is also head of the Hydrometeorology Department of Baku State University. From 2011 to 2016 Imanov worked as the Dean of Geography Faculty of Baku State University. Professor Imanov’s research and professional activities include 224 publications, as well as working as the National Coordinator on several regional projects  supported by UNDP, GEF, SIDA and UNECE) which carried out on the Kura River Basin in the South Caucasus since 2002. Professor Imanov is an active participant of IWRA World Water Congresses, World Water Forums, international water summits, conferences and workshops all over the world. He was alternate governor of the World Water Council since 2016. From 2005 he is the Chairman of the UNESCO IHP Azerbaijan National Committee.

Gary Jones (Australia)

After completing his Honours Degree in Science at Monash University in 1980, and his PhD at the University of Melbourne in 1985, Gary Jones was awarded a Fulbright Fellowship to undertake research on marine microalgae at the Massachusetts Institute of Technology in the USA. He was a Senior Research Fellow at the University of Newcastle Upon Tyne UK for two years from 1987, and returned to Australia to join the CSIRO in 1989 where he built an international reputation studying toxic cyanobacteria. In 2002, Gary was appointed Chief Executive of the Cooperative Research Centre for Freshwater Ecology and in 2005, of eWater CRC. In 2012, Gary led the transition of eWater CRC to an independent, not-for-profit river basin management and modelling company. In 2015, Australia’s Department of Foreign Affairs and Trade established the Australian Water Partnership (AWP), with Gary appointed as inaugural CEO. After guiding AWP through its establishment and early operating period, Gary resigned from eWater and AWP in early 2017. He now works on a semi-retired basis as a director and part-time consultant and advisor. Since 2012, Gary has held honorary university positions: as Adjunct Professor with the University of Canberra, Institute of Applied Ecology; and, from 2014, as Visiting Professorial Fellow with the University of New South Wales, Faculty of Engineering.

Eiman Karar (Sudan)

Eiman Karar is an environmental scientist with vast experience in multilevel governance of natural resources. She held a number of positions in the South African public sector leading the decentralisation reforms in the water sector as well as directing knowledge production, uptake and interface with community and policy makers in support of water governance reforms. As a governance technical expert, she was advisor to UN Environment in Sudan around peace building through natural resources management, legal, policy and organisational reform for
better water governance and IWRM advocacy. Currently she is consulting for UNEP; UNESCO Category 2 Regional Center for Capacity Building in Water Harvesting, Sudan; Trainer to the Hague Academy for Local Governments on Water Multilevel Governance and Institutional reforms; and UNICEF Sudan developing a national strategy for community management of rural water supply facilities.  She is also UNESCO Chair of Water Sudan (Omdurman Islamic University) Sudan; executive member of the Sudan for the IWRM Network; and, MAB programme UNESCO, Sudan. For the last 5 years, she is a member of the Programme Scientific Committee for the World Water Week.

Yoonjin Kim (Rep. of Korea)

Yoonjin Kim has been the Planning Director of the Korea Water Forum since 2016. She has also been a member of the Asia Water Council secretariat based at the Water Environment Global Cooperation Center of K-water, since 2015. Previously, she was the program coordinator for the Science and Technology Process of the 7th World Water Forum at the National Committee from 2013. Working in the corporate water sector since 2010, she has focused on the regional coordination of governance and capacity building. She was a co-founding member and a former executive member of the EAST (“East Asia Security for Tomorrow”) Society at the Graduate School of International Studies at Korea University. She was also a founding member of “People for Successful Corean Reunification” (PS CORE) with an academic focus on enhancement of non-traditional security. She also has organized numerous international summits and ministerial level inter-governmental conferences and managed national projects focused on global water cooperation.

Birgitta Liss Lymer (Sweden)

Birgitta Liss Lymer is Director of the Water Governance Department at the Stockholm International Water Institute (SIWI). SIWI’s Water Governance Department develops and applies research-based tools and methodologies, provides technical support to low- and middle-income countries for improved governance of water resources and water services and provides input to international processes. In 2014, Birgitta Liss Lymer initiated the establishment of the SIWI-led Action Platform for Source-to-Sea Management (S2S Platform) that now gathers many of the main global and regional organisations working to strengthen the links between water, coastal and marine management. She has authored several reports and peer-reviewed papers on the topic. She also leads the UNDP-SIWI Water Governance Facility – a collaboration between SIWI and UNDP on knowledge and capacity development in the areas of water resources management, transboundary waters and WASH. Prior to joining SIWI in 2011, Birgitta spent a decade working for different UN agencies in Asia and Africa with intergovernmental cooperation, policy development and implementation in the areas of water and sanitation, coastal and marine environmental protection and marine fisheries. Birgitta has a Master of Science in Aquatic and Environmental Engineering from Uppsala University, Sweden.

David Molden (Nepal)

David Molden is Director General of the International Centre for Integrated Mountain Development (ICIMOD), serving mountains and people in the Hindu-Kush Himalayan region. Prior to joining in late 2011, he was the Deputy Director General for Research at the International Water Management Institute (IWMI) which received the 2011 IWRA Crystal Drop Award and the 2012 Stockholm Water Prize. Dr Molden received a PhD in Civil Engineering from Colorado State University in 1987 in water resources, and has since developed interests in integrating social, technical, and environmental aspects of natural resources management. He has contributed to the publication of over 200 works. He was awarded the Outstanding Scientist Award of the Consultative Group on International Agricultural Research (CGIAR) in 2009.

Raya Marina Stephan (Palestine)

Raya Marina Stephan is an expert in water law, and an international consultant in water related projects with international organizations. She has a wide experience in the design and execution of international projects related to legal and institutional aspects of water management, and transboundary waters. She was involved in the experts advisory group of UNESCO’s International Hydrological Program to the Special Rapporteur of the UN International Law Commission for the preparation of the draft articles on the law of transboundary aquifers. She has also advised on the application of international water law for the UN Economic Commission for Europe and the Arab League. She was a member of the Publications Committee of the International Water Resources Association (IWRA) (2010-2012), and she chaired it and served on the Executive Board from 2013-2015. Ms Stephan is the author of numerous publications related to water law and international water law.

Mingna Wang (China)

Mingna Wang is a trained computer scientist and hydrologist with China Institute of Water Resources and Hydropower Research (IWHR), China where she co-directs the post-graduate school of IWHR. She also holds a visiting position at Monash University Malaysia campus. Dr. Wang’s professional experience in teaching, research and consultancy spans over 20 years and across many places in China. Her research interests include water resources modelling and management, water related extreme events, reservoir operations and controls, water policy impact and hydroinformatics. Her areas of expertise are in atmospheric–terrestrial water cycle in particularly evapo-transpiration, drought analysis in mountainous regions, and impact of urbanization on urban water cycle. She has participated in several international research projects from Global Environment Facility (GEF), European Union (FP6, FP7, H2020), and China’s own Belt and Road Initiative projects which spans across Far East, Central Asia, South Asia and Europe. Dr Wang is the author of numerous papers and conference proceedings published in Chinese and English language. Mingna holds a BSc in Electrical Engineering, a MSc in Applied Computing, and a PhD in Water Resources from IWHR.


IWRA previous
Executive Boards

President: Patrick Lavarde (France)
Past president: Dogan Altinbilek (Turkey)
Vice-Presidents: Naim Haie (Portugal), Yuanyuan Li (China), David Molden (Nepal)
Secretary General: Guy Fradin (France)
Treasurer: Renée Martin-Nagle (USA)
Board of Directors: Aziza Akhmouch (Morocco), Mukand S. Babel (Thailand), Carl Bruch (USA), Bruce Currie-Alder (Canada), Guillermo Donoso (Chile), Jun-Haeng Heo (Rep. of Korea), Y.S. Frederick Lee (China), Ahmet Mete Saatçi (Turkey), Raya Marina Stephan (France), Philippus (Flip) Wester (Netherlands)
Chair committee Awards: James E. Nickum (Japan)
Chair committee Membership: Gary Jones (Australia)
Chair committee Scientific, Technical & Publications: Henning Bjornlund (Australia)

2013- 2015
President: Dogan Altinbilek (Turkey)
Past president: Jun Xia (China)
Vice-Presidents: Lilian Del Castillo-Laborde (Argentina), Ngai Weng Chan (Malaysia), James E. Nickum (Japan)
Secretary General: Carl Bruch (USA)
Treasurer: Gabriel Eckstein (USA)
Board of Directors: Emmanuel M. AKPABIO (Nigeria), Henning Bjornlund (Australia), Ximing Cai (USA), Naim Haie (Portugal), Kun-Yeun Han (Korea), V.K. Kanjlia (India), Patrick Lavarde (France), Yuanyuan Li (China), Mark Redwood (Canada), Kaoru Takara (Japan).
Chair committee Awards: Giuseppe Rossi (Italy)
Chair committee Membership: Paula Silva (Mexico)
Chair committee Publications: Raya Marina Stephan (France)

2010- 2012
President: Jun Xia (China)
Past president: Cecilia Tortajada (Mexico/Spain)
Vice-Presidents: Giuseppe Rossi (Italy), Anthony Turton (South Africa), Rui Vieira (Brazil)
Secretary General: James Nickum (Japan)
Treasurer: Gabriel Eckstein (USA)
Board of Directors: Murad Bino (Jordan), Ngai Weng Chan (Malaysia), Pierre Chevallier (France), Simon Cook (Colombia), Rafael Izquierdo (Spain), Madiodio Niasse (Roma/Senegal), Paula Silva (Mexico/USA), Marcia Valiante (Canada), Raquel Zabala (Argentina), Mark Zeitoun (UK)
Chair committee Awards: Viktor Dukhovny (Uzbekistan)
Chair committee Membership: Shi Guoqing (China)
Chair committee Publications: Christopher Scott (USA)

2007- 2009
President: Cecilia Tortajada (Mexico/Spain)
Past president: Aly M. Shady (Canada)
Vice-Presidents: Olli Varis (Finland), Hussam Fahmy (Egypt), Dogan Altinbilek (Turkey)
Secretary General: Lilian del Castillo-Laborde (Argentina)
Treasurer: Ben Dzigielewski (USA) / Carl Bruch (USA)
Board of Directors: Jennifer McKay (Australia), Anthony Turton (South Africa), Rui Vieira (Brazil), Undala Alam (UK), Shaofeng Jia (China), Viktor Dukhovny (Uzbekistan), Salman M. A. Salman (Sudan), Atef Kassem (Canada), Alexandra Pres (Germany), Zebediah Phiri (Zambia)
Chair committee Awards: Ismail Najjar (Canada)
Chair committee Membership: Gunilla Björklund (Sweden)
Chair committee Publications: James Nickum (Japan)

President: Aly M. Shady (Canada)
Past president: John J. Pigram (Australia)
Vice-Presidents: Cecilia Tortajada (Mexico/Spain), Olcay Unver (Turkey), Jun Xia (China)
Secretary General: Torkil Jonch-Clausen (Denmark)
Treasurer: John W. Nicklow (USA)
Board of Directors: Carlos Fernandez Jauregui (Bolivia), Gertjan B. Beekman (Brazil), Bruce Mitchell (Canada), Olli Varis (Finland), Karin Kemper (Germany), G. N. Mathur (India), Toshikatsu Omachi (Japan), Johan Rockstrom (Zimbabwe), Caroline Figueres (Netherlands), Walid Abderrahman (Saudi Arabia)
Chair committee Awards: Lilian del Castillo-Laborde (Argentina)
Chair committee Membership: Shuichi Ikebuchi (Japan)
Chair committee Publications: Luis E. Garcia (Guatemala)

President: John J. Pigram (Australia)
Past president: Benedito P. F. Braga Jr. (Brazil)
Vice-Presidents: M. Ramon Llamas (Spain), Victor Pochat (Argentina), Yutaka Takahasi (Japan)
Secretary General: Olcay Unver (Turkey)
Treasurer: Jack F. Langowski Jr. (USA)
Board of Directors: Luiz Gabriel T. De Azevedo (Brazil), William Cosgrove (Canada), Richard Ives (USA), Lilian del Castillo-Laborde (Argentina), Toshiharu Kojri (Japan), Barbara Schreiner (South Africa), Cecilia Tortajada (Mexico/Spain), Juha I. Uitto (Finland), Patricia Wouters (UK), Jun Xia (China)
Chair committee Awards: Aaron Wolf (USA)
Chair committee Membership: Luis E. Garcia (USA)
Chair committee Publications: Mikiyasu Nakayama (USA)

President: Benedito P. F. Braga Jr. (Brazil)
Past president: Glenn E. Stout (USA)
Vice-Presidents: Jan O. Lundqvist (Sweden), John J. Pigram (Australia), Kuniyoshi Takeuchi (Japan)
Secretary General: Carlos M. Escartin (Spain)
Treasurer: John W. Shomaker (USA)
Board of Directors: Karen K. Assaf (Palestinian Authority), Hector Garduño (Mexico), Peter Gleick (USA), Ricardo Harboe (Germany), M. Ramon Llamas (Spain), Masahiro Murakami (Japan), Monica F. Amaral Porto (Brazil), Slobodan P. Simonovic (Canada), Tawatchai Tingsanchali (Thailand), Xu Xinji (China)
Chair committee Awards: Peter J. Reynolds (Canada)
Chair committee Membership: Janusz Kindler (Poland)
Chair committee Publications: Ashim Das Gupta (Thailand)

President: Glenn E. Stout (USA)
Past president: Mahmoud Abu-Zeid (Egypt)
Vice-Presidents: Benedito P. F. Braga Jr. (Brazil), Katumi Musiake (Japan), Aly M. Shady (Canada)
Secretary General: Victor De Kosinsky (Belgium)
Treasurer: Timothy H. Larson (USA)
Board of Directors: Mohamed Safwat Abdel-Dayem (Egypt), Bingxin Chen (China), Carlos Fernandez Jauregui (Bolivia), Frank J. Hartvelt (USA), Soontak Lee (Republic of Korea), Guy M. Le Moigne (USA), Rainer Loof (Thailand), John J. Pigram (Australia), Hillel Shuval (Israel), Kuniyoshi Takeuchi (Japan)
Chair committee Awards: W. Hall C. Maxwell (USA)
Chair committee Membership: Ashim Das Gupta (Thailand)
Chair committee Publications: Evan Vlachos (USA)

President: Mahmoud Abu-Zeid (Egypt)
Past president: Asit K. Biswas (UK)
Vice-Presidents: Ashim Das Gupta (Thailand), Gert A. Schultz (Germany), Glenn E. Stout (USA)
Secretary General: N. C. Thanh (Thailand)
Treasurer: Peter J. Reynolds (Canada)
Board of Directors: Marcello Benedini (Italy), Hector Garduño (Mexico), E. P. Gusenkov (Russia), Z. Hasan (India), Mohammed Jellali (Marocco), Janusz Kindler (Poland), Jan Lundqvist (Sweden), Katumi Musiake (Japan), Geoffrey E. Petts (UK), Sandra L. Postel (USA)
Chair committee Awards: Benedito P. F. Braga Jr. (Brazil)
Chair committee Membership: Victor De Kosinsky (Belgium)
Chair committee Publications: Evan Vlachos (USA)

President: Asit K. Biswas (UK)
Past president: Peter J. Reynolds (Canada)
Vice-Presidents: Mahmoud Abu-Zeid (Egypt), Madhav A. Chitale (India), Zhang Zezhen (China), Carlo Lotti (Italy), Oskar T. Sigvaldason (Canada)
Secretary General: Glenn E. Stout (USA)
Treasurer: Jonathan W. Bulkley (USA)
Board of Directors: Abdullah A. R. Arar (Italy), Benedito P. F. Braga Jr. (Brazil), Victor De Kosinsky (Belgium), Ashim Das Gupta (Thailand), Hiroshi Hori (Japan), Bindu N. Lohani (Philippines), Jean-Paul Mounier (France), Terence C. Muir (UK), Gert A. Schultz (Germany), C. V. J. Varma (India)
Chair committee Geog. Committee and Membership: Janusz Kindler (Poland)
Chair committee Publications: David J. Eaton (USA)

1986 -1988
President: Peter J. Reynolds (Canada) Past president: J. P. Garbe
Vice-Presidents: Malin Falkenmark (Sweden). LATINAMERICA: Julio Barberis (Argentina), AFRICA: Yahia Abdel Mageed (Sudan). ASIA: Zhang Zezhen (China). SOUTH PACIFIC/OCEANIA/AUSTRALIA: Sandford R. Clark (Australia)
Secretary General: Glenn E. Stout (USA)
Treasurer: Sam H. Johnson III (USA) originally elected and Alan H. Schultz (USA) from beginning of 1986 to the end of 1988
Board of Directors: Guillermo J. Cano (Argentina), Walther Lichem (Austria), Benedito P. F. Braga Jr. (Brazil), Th. S. Xanthopoulos (Greece), Carlo Lotti (Italy), Yutaka Takahashi (Japan), Rafael Heras (Spain), Leonard E. Taylor (UK), Evgeny P. Gusenkov (USSR), Gert A. Schultz (West Germany)
Chair committee Technical Programmes: Laszlo David (Hungary) Chair committee Membership: Louis W. De Backer (Belgium) Chair committee Publications: João Bau (Portugal)
Chair committee Geog. Committees: C.V.J. Varma (India)
Chair committee International Cooperation and Deputy-Secretary General: Louis J. Mostertman (The Netherlands)

President: J. P. Garbe (France)
Past president: Guillermo J. Cano (Argentina)
Senior Vice-President: Peter J. Reynolds (Canada)
Vice-Presidents: AFRICA: Mohammed Abdel Samaha (Egypt). LATINAMERICA: Santiago Isern (Argentina). ASIA: Bonrood Binson (Thailand). SOUTH PACIFIC/OCEANIA/AUSTRALIA: Thomas Chapman (Australia)
Secretary General: J. M. Martin-Mendiluce (Spain) Treasurer: George H. Davis (USA)
Board of Directors: Luiz Veiga Da Cunha (Portugal), José llamas (Canada), K. V. Krishnamurthy (India), Cid Tomanik Pompeu (Brazil), Joaquin R. Bustamente (Mexico), Louis M. De Backer (Belgium), Adriaan Volker (Netherlands), L. Pesikov (USSR), Zhang Zezhen (China)
Chair committee Geog. Committee: Hiroshi Hori (Japan) Chair committee Publications: Glenn E. Stout (USA)
Chair committee Membership: Malin Falkenmark (Sweden) Chair committee Technical Programmes: Enzo Fano (USA)
Chair committee International Cooperation and Deputy-Secretary General: Carlo Lotti (Italy)

President: Guillermo J. Cano (Argentina)
Past president: Ven Te Chow (USA)
Vice-Presidents: Ellis L. Armstrong (USA), Asit K. Biswas (UK), Yoshiaki Iwasa (Japan), Iraj Vahidi (Iran)
Secretary General: C. V. J. Varma (India) Treasurer: George H. Davis (USA)
Board of Directors: Harvey O. Banks (USA), Themistocles Dracos (Switzerland), Malin Falkenmark (Sweden), Jean J. Fried (France), Keith Henry (Canada), Hiroshi Hori (Japan), Rubem La Laina Porto (Brazil), Carlo Lotti (Italy), Subin Pinkayan (Thailand), Erich Plate (Germany)
Chair committee Membership: K. V. Krishnamurthy (India)
Chair committee Publications: Leo R. Beard (USA)
Chair committee Technical Programmes: Louis J. Mostertman (The Netherlands)
Chair committee Geog. Committees: L. Stephen Lau (USA)
Chair committee International Cooperation: Arnoldo J. Gabaldon (Venezuela)

President: Ven Te Chow (USA)
Vice-Presidents: K. L. Rao (India), J. M. Martin-Mendiluce (Spain), José Leite de Souza (Brasil), Farid M. Mikhail (Egypt)
Secretary General: Gabor M. Garady (USA) for 1972 – September 1976 then Sandor C. Csallany (USA) for September 1976 – beginning 1977 then C. V. J. Varma (India) from beginning 1977 to 1979
Treasurer: Roy A. Williams (USA) then George H. Davis (USA) from beginning 1977 to 1979
Board members: Ellis L. Armstrong (USA), Guillermo J. Cano (Argentina), Léopold Escande (France), Emil F. Mosonyi (West Germany), Helmut Simmler (Austria), Iraj Vahidi (Iran), Dimo Velev (Bulgaria), Adriaan Volker (The Neetherlands), Gavin Warnock (Canada)
Chair committee coordination of geographical committees: Leopold A. Heindl (USA)
Chair committee Membership: William S. Butcher (USA)
Chair committee Publications: Rayymond J. Krizek (USA)
Chair committee Technical Programmes: Herbert C. Preul (USA)
Chair committee International Cooperation: Sandor C. Csallany (USA) then C. V. J. Varma (India) from beginning 1977 to 1979

President: Ven Te Chow (USA)
Vice-Presidents: K. L. Rao (India), Florentino Briones (Spain), José Leite de Souza
(Brasil), Farid M. Mikhail (Egypt)
Secretary General: Gabor M. Garady (USA)
Treasurer: Roy A. Williams (USA)
Board of Directors: Harvey O. Banks (USA), Themistocles Dracos (Switzerland), Malin Falkenmark (Sweden), Jean J. Fried (France), Keith Henry (Canada), Hiroshi Hori (Japan), Rubem La Laina Porto (Brazil), Carlo Lotti (Italy), Subin Pinkayan (Thailand), Erich Plate (Germany)
Chair committee coordination of national committees: Leopold A. Heindl (USA)
Chair committee Membership: William S. Butcher (USA)
Chair committee Publications: Raymond J. Krizek (USA)
Chair committee Technical Programmes: Herbert C. Preul (USA)
Chair committee International Cooperation: Sandor C. Csallany (USA)